Relativistic Surface Gravity for Half Spin Parameter of Black Holes in XRBs

Abstract

The mass, angular momentum and charge are the functions of the surface gravity of spinning black holes. The present paper discusses the relativistic surface gravity of different test black holes half spin parameters existing in X-ray binaries and concludes that the relativistic surface gravity attains the maximum values for the lower masses and minimum value for higher masses. The spinning velocity is also responsible to increase or decrease the surface gravity of black holes depending on its values.